You were funny, but I still want to address a serious point.
If aliens come here from those star systems light years away,
they figured out the energy problem. They are not going to
want to take over our coal mines and natural gas deposits.
I assume they have much better energy sources. I do not know
anything else (as resource) that would not be found on other
(uninhabited) planets than the fossil fuels.
Of course that still leaves the possibility that they just
want the living space (oceans greens etc.) and/or would see us
as food as delicacy. (Maybe the better meaning majority would
make laws to declare us endangered, like we do with the whales,
but some would still hunt us for fun/profit.
But if colonization is what drives the aliens, then they would
surely find planets that can serve for that purpose without
intelligent life and much closer to their origins. (There are
billions of systems etc.) Why would they want Earth with an
ecosystem damaged and being damaged by humanity? I just assume
they would much rather have a clean planet...
The only issue I can see is if we are competition to these aliens
colonization efforts of other planets. But we are not there yet,
and when we get there, hopefully we will be able to protect
But, it is an interesting question to ponder: Assume we were on our
way to colonize other planets and got near to some prospective
one. We notice that there is life there and may be intelligent
(say on the level of the Neandertales which is what we would appear
to aliens today I assume). What would we do? Keep looking
further (cost) or eradicate them or enslave them (less cost, high
moral cost)? Now go see Pocahontas or Avatar!!